chore: add disable discovery options (#1182)

crates/net/network/src/config.rs

@@ -238,12 +238,24 @@ impl NetworkConfigBuilder {
         self
     }
 
+    /// Disables Discv4 discovery.
+    pub fn no_discv4_discovery(mut self) -> Self {
+        self.discovery_v4_builder = None;
+        self
+    }
+
     /// Sets the dns discovery config to use.
     pub fn dns_discovery(mut self, config: DnsDiscoveryConfig) -> Self {
         self.dns_discovery_config = Some(config);
         self
     }
 
+    /// Disables DNS discovery
+    pub fn no_dns_discovery(mut self) -> Self {
+        self.dns_discovery_config = None;
+        self
+    }
+
     /// Sets the boot nodes.
     pub fn boot_nodes(mut self, nodes: impl IntoIterator<Item = NodeRecord>) -> Self {
         self.boot_nodes = nodes.into_iter().collect();
@@ -258,9 +270,10 @@ impl NetworkConfigBuilder {
         self
     }
 
-    /// disables discovery.
+    /// Disables all discovery services.
     pub fn disable_discovery(&mut self) {
         self.discovery_v4_builder = None;
+        self.dns_discovery_config = None;
     }
 
     /// Consumes the type and creates the actual [`NetworkConfig`]

crates/net/network/src/test_utils/testnet.rs

@@ -308,6 +308,7 @@ where
         NetworkConfigBuilder::new(secret_key)
             .listener_addr(SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::UNSPECIFIED, 0)))
             .discovery_addr(SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::UNSPECIFIED, 0)))
+            .no_dns_discovery()
     }
 }